What river flows through Colorado's Black Canyon?

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How many time zones are spanned by Russia?

Patty Duke won an Oscar in 1963 for portraying what popular author?

Who was the first American artist to have a painting on display in the Louvre?

What was patented by Eli Whitney in 1749?

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What country’s air force was destroyed on the ground on June 5, 1967?

Who was king of England at the time of the Gunpowder Plot?

Which Western nation underwent the Quiet Revolution in the 1960s?

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Through which African countries do the Atlas Mountains stretch?